B1499

AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1499/99: Multiplex Communication Circuit
B1499/99 - Multiplex Communication Circuit

DESCRIPTION

The air conditioning amplifier communicates data with the ECM and combination meter through the CAN communication system.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. RECHECK DTC

(a) Clear the DTCs DTC Check / Clear.

(b) Check for DTCs DTC Check / Clear.

OK:

DTC B1499/99 is not output.

NG -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting